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Proceedings of the IRE, 1946
The history of the Loran hyperbolic navigation program as an example of the efficient mass production of research and development under the National Defense Research Committee is described. The fundamental concepts of hyperbolic navigation are addressed, and some details regarding the kinds of equipment employed for transmission, reception, and ...
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The history of the Loran hyperbolic navigation program as an example of the efficient mass production of research and development under the National Defense Research Committee is described. The fundamental concepts of hyperbolic navigation are addressed, and some details regarding the kinds of equipment employed for transmission, reception, and ...
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New Loran Capabilities Enhance Performance of Hybridized GPS/Loran Receivers
Navigation, 1999As a result of the growing popularity and utility of GPS, advances in Loran technology and system performance have not been well publicized. Recently it has become clear that neither the United States nor the international community will adopt a sole-means GPS system.
G. LINN ROTH, PAUL W. SCHICK
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Journal of Navigation, 1958
Contours of constant probability density have been calculated for Loran systems in different service areas, and from these some ‘Loran navigational charts’, which indicate to the navigator the best two pairs of stations to select, are drawn up. The constant probability density contours are shown in Figs 1–6 (a) and the Loran navigational charts are ...
Y. Namikawa, K. Hasegawa
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Contours of constant probability density have been calculated for Loran systems in different service areas, and from these some ‘Loran navigational charts’, which indicate to the navigator the best two pairs of stations to select, are drawn up. The constant probability density contours are shown in Figs 1–6 (a) and the Loran navigational charts are ...
Y. Namikawa, K. Hasegawa
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Loran Calibration by Prediction
Navigation, 1976Loran Propagation is uniquely predictable using the integral form of Maxwell's Equations. The demonstrated high -- precision repeatability of Loran time differences (TDs) has provided a mechanism with sufficient resolution to detect the extremely small phase variations caused by propagation anomalies.
L. B. BURCH, R. H. DOHERTY, J. R. JOHLER
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Current Developments in Loran-D
Navigation, 1974Loran-D is a highly accurate pulsed hyperbolic navigation system similar to and compatible with Loran-C, but designed for military tactical use. The helicopter—transportable—transmitter stations have quickly erectable antennas using new tower technology.
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Journal of Global Positioning Systems, 2004
A multimodal group of engineers, scientists, and industry representatives, including the U.S. Coast Guard (USCG) and Federal Aviation Administration (FAA) completed a major effort to define and analyze the performance of a new Enhanced Loran system as a backup for the navigation and timing services provided by the NAVSTAR Global Positioning System ...
Benjamin B. Peterson +3 more
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A multimodal group of engineers, scientists, and industry representatives, including the U.S. Coast Guard (USCG) and Federal Aviation Administration (FAA) completed a major effort to define and analyze the performance of a new Enhanced Loran system as a backup for the navigation and timing services provided by the NAVSTAR Global Positioning System ...
Benjamin B. Peterson +3 more
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2008 IEEE/ION Position, Location and Navigation Symposium, 2008
This paper investigates possible changes to the Loran phase codes, and the potential improvements that such changes could provide. (The term "phase code" refers to a multiplier of plusmn1 on the envelope of each individual Loran pulse; the sequence of signs repeats every two groups or "phase code interval.") Currently, all master signals use one ...
Swaszek, Peter F. +3 more
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This paper investigates possible changes to the Loran phase codes, and the potential improvements that such changes could provide. (The term "phase code" refers to a multiplier of plusmn1 on the envelope of each individual Loran pulse; the sequence of signs repeats every two groups or "phase code interval.") Currently, all master signals use one ...
Swaszek, Peter F. +3 more
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Journal of Navigation, 1991
In 1987 a special meeting of IALA held at Trinity House in London expressed a common purpose to enhance and expand existing Loran-C coverage in North-West Europe and the North Atlantic. After two years of negotiation, agreement was finally reached in January of this year to proceed with the project.
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In 1987 a special meeting of IALA held at Trinity House in London expressed a common purpose to enhance and expand existing Loran-C coverage in North-West Europe and the North Atlantic. After two years of negotiation, agreement was finally reached in January of this year to proceed with the project.
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1980
Abstract : LORAN is a highly accurate source of positioning information that can also be used for precision time reference. This report presents an overview of the LORAN navigation system for the general reader. Basic system characteristics and relationships provide a background in LORAN navigation and signal processing that applies to LORAN receivers ...
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Abstract : LORAN is a highly accurate source of positioning information that can also be used for precision time reference. This report presents an overview of the LORAN navigation system for the general reader. Basic system characteristics and relationships provide a background in LORAN navigation and signal processing that applies to LORAN receivers ...
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Navigation, 1982
Loran-C is a radionavigation system that has been operational since 1958. The initial development was started during World War II and since that time the system has evolved through several stages. The number of applications and the extent of the system have also significantly increased.
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Loran-C is a radionavigation system that has been operational since 1958. The initial development was started during World War II and since that time the system has evolved through several stages. The number of applications and the extent of the system have also significantly increased.
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